<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>过渡实战</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        .box {
            width: 508px;
            height: 107px;
            margin: 40px auto;
        }

        .box ul {
            list-style: none;
        }

        .box ul li {
            float: left;
            width: 107px;
            height: 107px;
            margin-right: 20px;
            position: relative;
        }

        .box ul li:last-child {
            margin-right: 0;
        }

        .box ul li::before {
            content: '';
            display: block;
            width: 107px;
            height: 107px;
            transform: rotate(0);
            transition: transform 1s ease 0s;
        }

        .box ul li:nth-child(1)::before {
            background-image: url(images/a_1.png);
        }

        .box ul li:nth-child(2)::before {
            background-image: url(images/a_2.png);
        }

        .box ul li:nth-child(3)::before {
            background-image: url(images/a_3.png);
        }

        .box ul li:nth-child(4)::before {
            background-image: url(images/a_4.png);
        }

        .box ul li img {
            position: absolute;
            width: 60px;
            height: 60px;
            top: 50%;
            left: 50%;
            margin-top: -30px;
            margin-left: -30px;
            transition: transform 1s ease 0s;
        }

        .box ul li:hover::before {
            transform: rotate(360deg);
        }

        .box ul li:hover img {
            transform: scale(1.2);
        }
    </style>
</head>

<body>
    <div class="box">
        <ul>
            <li>
                <img src="images/icon1.svg" alt="">
            </li>
            <li>
                <img src="images/icon2.svg" alt="">
            </li>
            <li>
                <img src="images/icon3.svg" alt="">
            </li>
            <li>
                <img src="images/icon4.svg" alt="">
            </li>
        </ul>
    </div>
</body>

</html>